Snapping-rollers for corn-harvesters.



PATENTED AUG. 20, 1907.

J. A. STONE. SNAPPING ROLLERS FOR CORN HARVBSTBRS.

APPLIOATION FILED MAR. 22, 1907.

UNITED STATES PATENT OFFICE.

JOHN A. STONE, OF

CHICAGO, ILLINOIS, ASSIGNOR-TO INTERNATIONAL HARVESTER COMPANY, A CORPORATION OF NEW JERSEY.

snsrrme-nomns son conir-nanvns'rnas.

Specification of Letters Patent.

Patented Aug. 20, 190 7.-

Application filed isms 22,1907. Serial llo. 363.817.

' United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new A and useful Improvements in Snapping-Rollersior Corn- Harvesters, of which the following is a specification.

My invention relates to snapping rollers designed to gather the ears from the stalks while the latter are uncut and occupying their original position in the field; the stalks being directed to and received between the forward ends of two coacting rollers driven in opposite directions and having spirally arranged ribs thereon adapted to convey the stalks longitudinally relative to the axes of the rollers and toward the rear ends thereof; the object being to provide improved means forming part oithe rollers for engaging with the ears and separating them from the stalks as the latter are carried rearward and downward between the coacting rollers, which are preferably mounted in a plane inclined upward and rearward toward the rear end of the machine. I attain this object by the mechanism illustrated in the accompanying drawing, in which-- 7 Figure 1 is'a plan view of two coacting snapping rollers embodying my invention. Fig. 2 is a cross section of Fig. 1 on line A-B; and Figs. 3 and 4 represent modified forms of the snapping means. p

Similar reference numerals designate like parts throughout the several views.

1 and 2 designate coacting snapping rollers designed to be rotated in opposite directions, having substantially cylindrical body portions 3, and tapered receiving ends 4; and are also provided with two series of spirally arranged ribs that are inclined'rearward in a direction opposite to that in which the roller is designed to be rotated in a manner to cause the stalks to move rearward longitudinally relative to the axis of the roller. The ribs are preferably arranged in pairs, the members being in parallel relation andforming narrow intervening channels 5 between the two members, and are gradually increased in I height from their forward toward their rear ends, where they terminate in bridge por tions 6 that span the intervening channels; the

being opposed by the body portion of the coacting roller in their operation of severing the ears from the with the fixed bridge at a small reduction of the power required to operate the snapping rollers. I

What I claim asmy invention, and desire to secure b Letters Patent, is:

1. A snapping-roller for corn-harvesters comprising, in combination, a body portion and a series of pairs'ot ribs arranged spirally thereon in a manner to move the stalks longitudinally relative to the axis of the roller, each pair of said ribs terminating in abridge spanning the intervening channel. 1

2. A snnpping-roller for corn-harvesters comprising, in comblnation, n body portion and a series of pairs of substantially parallel ribs arranged spirally thereon in a manner to move'the stalks longitudinally relative to the axis of the roller, each pair of said ribs terminating in a bridge spanning the intervening channel's,

3. A snapping-roller for corn-harvesters comprising, in combination, a. body portion and a series of pairs of substantially parallel ribs arranged spirally thereon in a manner to move the stalks longitudinally relative to the axis of the roller, and rollers bridging the intervening channel between eacbpair of said ribs at their terminals.

4. A snapping-roller for corn-harvesters comprising, in combination, a body portion and a series of. pairs of substantially parallel ribs 'arranged spirally thereon in a manner to move the stalks longitudinally relative to the axis of the'roller, and rollers bridging the intervening channel between each pair of said ribs and having their axes substantially parallel with the axis of said bgdy portion.

5. A snapping-roller for corn-harvesters comprising, in combination, a body portion and a series of pairs of ribs arranged spirally thereon in a manner to move the stalks longitudinally relative to the axis of the roller, each pair of said ribs terminatingin a bridge spanning the intervening channel, the series of. bridges being substantially parallel with the axis of the roller.

6. A snapping-roller for corn-harvesters comprising, in

combination, a body portion and a plurality of pairs of ribs arranged spirally thereon in' a manner to move the stalks longitudinally relative to the axis of the roller, each of said pairs of ribs terminating in a bridge spanning the intervening channel and having the bridge of one pair arranged substantially diametrically opposite that of theadjacent pair.

7. A snapping-roller for corn-harvesterscomprising, in combination, a body portion and a plurality of pairs of ribs in two series arranged spirally thereon in a manner to move the stalks longitudinally relative to the axis of the roller, each of said pairs of ribs terminating in a bridge spanning the intervening channel and having the bridge of one pair in one series arranged substantially diametrically opposite that of the adjacent pair in the other series, and the two series of bridges being substantially parallel with the axis or the roller.

9. A snapping-roller for corn-harvesters comprising, in srrangedribs, the separate series being located upon opcombination, a body portion and a series of pairs of ribs posite sides of the body portions of the rollers substanarranged spirally thereon in a manner to move the stalks iongituiiinally relative to the axis of the roller, each pair of said ribs terminating in a bridge spanning the intervening channel, said ribs gradually increasing in height as they approach said bridge. 10. A pair of coacting snapping-rollers tor corn-harvesters adapted to be rotated in opposite directions and comprising, in combination, cylindrical body portions, each having a series of pairs of ribs arranged spirally thereon in a manner to move the stalks longitudinally in the same direction relative to the axis or said roliers,.each pair of said ribs terminating in a bridge spanning the intervening channel.

11.'A pair of coacting snapping-rollers for corn-harvesters adapted to be rotated in opposite directions and comprising, in combination, cylindrical body portions, each having a series of pairs of ribs arranged spirally thereon in a manner to move the'stalks longitudinally in the same direction relative to the axes of said rollers, each pair of said ribs terminating in a bridge spanning the intervening channel, said bridges adapted to contact with the stalks and press them against the body portion of the coacting roller.

12; A pair of coacting snapping-rollers for corn-harvesters adapted to be rotated in opposite directions and comprising, in combination, cylindrical body portions,

each roller having two separate series of pairs of spirally tlally parallel with'the axis thereof, and each pair of ribs terminating in a bridge spanning the intervening channel.

13. A pair of coacting snapping-rollers for corn-harvesters adapted to be rotated in opposite directions and having cylindrical body portions, 'each roller having two separate series of pairs of spirally arranged ribs, the separate series being located upon opposite sides of the body portion of the rollers substantially parallel with the axis thereof, and each pair of ribs terminating in a bridge spanning the intervening channel, the bridge portions of the series upon one roller being opposed to the body portion of the coacting roller.

14. A pair of coacting snapping-rollers for corn-harvesters adapted to be rotated in opposite directions and having cylindrical body portions, each roller having two separate series of pairs of spirally arranged ribs, the separate series being located upon opposite sides of the body portion of the rollers substantially parallel with the axis thereof, and each pair of ribs terminating in a bridge spanning the intervening channel, the bridge portions of the separate series being. substantially parallel with the axis of the roller and opposing the body portion of the coacting roller,

JOHN A. STONE.

Witnesses:

Orro H. Annnas, OscAn A. ANDERSON. 

